Carbureter.



W. M. GENTLE.

GABBUEETBR.

APPLICATION FILED JAN. 12, 1911.

Patented Apr. 29, 1913.

A TTORNEY. l

WITNESSES.-

' screws through STATES rnirnnr ernten.

WILLIAM V1ML GENTLE, 0F GREENWOOD, INDIANA.

' CAR-BURNER.

Application filed January 12, 1911.

Specificationv ofLetters Patent.

' .Patenten npr., es, isis. semaine. 602,187.

ToaZZ whom t may concern:

Be it known that I, WILLIAM M. GriN'rLE, a citizen of the United States, and a resident of Greenwood, county of Johnson, an State of Indiana,

tion thereof, reference companying drawings..v

The object of this invention vis to improve .the construction and operation of carbureters by way of.,a divi'sionoutr of and an improvement over in my former application, filed Dec. 19, v1909. i

The nature of the invention will be understood from the accompanying drawings and the following description and claims Figure 1 is a vertical section the device. Fig. 2 is the same with some parts omitted and the other vparts in actuf being -hadto` the acated position. Fig. 3 is a section on'the line Fig. 4 is a section on the line' 3-3 of Fig. l. 4-4 of Fig. 1.

In detail, 12 represents the float chamber which is substantially semi-spherical in vertical section, as shown in Fig. 1.

13 is a float mounted on the lever 14 fulcrumed on the pin 15 from the fio-at chamber and actuates the valve 17 which regulates the'supply of fuel through the inlet nipple 18 and tube 19.

The oarbureting chamber 20 screws like'a lid into connection with the upper part of the ioat chamber and has a large downward ceiitral circular extension 21 which surrounds a corresponding upward extension 22 of the leave-some space be` 'Hence there is a float chamber so as to tween said extensions.n large vertical air passagewa through -said extension 22 of the float cham er which leads to the mixingchamber. -This air passageway is closed when a ma be termed the auto This valve is slidable onhe rod 24 which the arm 25 the latter beinfgsecured to the ange 26 which extends inwardly and horizontally from the inner wall of the extension. 22 of the float chamber. By this means the vertical position of the rod 24is adjusted. The automatic air valve is imperforate and is held downward atie' air valve 23.

. by a spring 27 which surrounds the rod 24 vand rests onthe valve 23 and at its upper end engages the nut 28 which is on the upperend of the rod 24. Hence, the tension of the SIHID? nut 23 as welles .tharod 24.1'

have invented a certain useful' Carbureter; and I do hereby declare'- that the" following isa full, clear, and exact descri'pfv thefcarbuieter "set forth v midway of in the extension 16 the deviceis idle by whatl ,ery of thevalve 23 andI surrounds t e perip 22 of the float chamber. The valve rections therein, as indicated by the arrows in Eig. 2.

' There is antopening 40 through the top of the carbureting chamber 20 intov a cylindrical extension 41 which might be termed a secondary carbureting. chamber because it has a secondary air inlet opening 42 near the bottom xthereof and on a lower level than the throttle valve 43..y This throttle valve is Asecured on the shaft 144,'which' extends enftirely its outer endsA carries a throttle crank 44 -while on the other `outer end it carries' the valve 45 for closing the secondaryf air inlet 42. The opening 42 is preferably curved segmentally, and likewise the valve 45 is segmental in shape andris adjustably secured on the shaft 144 by the clamping arms Hence this valve can be Eadjusted with relation to thet-hrottle crank. so that its action by way of closing and opening thel secondary lair inlet 42 will be modified. In either event it is so adjusted on the shaft 144 with reference to the throttle lcrank that the valve will close the air inlet 42 when the throttle crank moves the throttle valve 43 tothe closing position, and as the throttlevalve 43 tends to open, there'is also acirresponding opening movement of the valve 45, `laltho/,ug the air inlet 42 by the valve 4 5 may begin at an earlier or latter period during the movement of the throttle crank according to the adjustment of said valve.

In operation, is opened ton lifts the valve 23, and the incoming air over the space between the extension 21 of the carbuieterchamber and the extension 22 lof the "doat chamber and through which tha fuel issues and is carried 'and evaporated b the sweep of the incoming 'ted by the arrows 'm1 Fig. 9. As the throt- 27 can be regulated by adjusting'the 'tie valve is further opened and theengine Ao' lindrical screen 30 dependsfrom they 'actuated only by the suction ofthe 'enit is under way.'v

as soon asthe throttle valve' somewhat, suction from the pi'srushes laterally through the screen 30 and 110 air, as indi- Ichamber and distributes laterally in all di- SCL' through the chamber 41, and on one f h the gradual opening of receives more and more fuel, the secondary air intake 4t2 1s gradually opened more and more. Thereafter during the operation the valve 23 is maintained in the open position in proportion to the suction of the engine.

A Vstop 50 is mounted on said valve rod 24 so it lcan be vertically adjustable thereon and is held in place by a nut l. The stop 50 can be adjustably located on VJthe -rod 2l for limiting the closing movement of the valve.v This is illustrated in'Fig. 2, where said stop 50 is so high that it would prevent the entire closingVv movement of the valve.

I. claim as my invention:

l. A carbureter including a fuel chamber, a carbureter chamber, an air inlet chamber, a movable screen interposed between the air inlet chamber and the carbureter chamber and projecting into the fuel chamber,'and

p meanscontrolled bythesuction of the engine for moving said screen `for varying the portion therein between the air inlet chamber and carbureter chamber.

2. A carbureter includingr a fuel chamber,

i a carbureter chamber, an lair inlet chamber,

'a movable screen interposed between the air and the carbureter' chamber into the fuel chamber, and a suction-actiliated valve secured to said screen so as to move the same and increase or diminish the portion of said. screen between the air' inlet chamber vand the carbureter chamber.

inlet chamber 3. A carbureter .including al Hoa-t chamber for the liquid fuelhaving' an upwardly extending tubular projection forming an air intake, a carbureting chamber secured'to and above the float chamber having a' downwardly extending tubular projection loosely surrounding the tubular projection of the iioat chamber so as to leave a small chamber between, a valvefor closing the upper end of the air intake, yieldinfr means for holda screen extendbetween said extensions.

t. A carbureter including afloat chamber -for the liquid fuel having an upwardly extending tubular projectionforming an air intake, a substantially ellipsoidal carbureting chamber secured to and'closing the up-` per end of the float chamber, a tubular projection integral with said carburet-ing chamber and'extending downward therefrom and loosely surrounding the tubularV projection of-I the float chamber forming thereby an rtnnular fuel passageway -connecting'th'e float chamber with the carbureting chamber, and meansl for deflecting ,the yair intake across the fuel passageway onto.,the concave wall of the carbureting chamber, whereby the air and fuel will be rolled inwardly in a mix! I and closing theI upper end of the fuel champassing out of said carber, a tubular projection integral with the'vv earburetin'g chamber and extending downwardly -therefrom and loosely surrounding the tubular projection of the float chamber so as to form a small tubular chamber between said'projections, ,and means extending downwardly in said circular chamber for the liquid fuel to climb upwardly thereon. 6. A carbureter including a float chamber for the liquid fuel having an upwardly 'extending tubular projection. forming an air intake, a carbureting chamber secured to and closing the upper end of the fuel cham ber, a tubular projection integral with the wardly therefrom and loosely surrounding the tubular projection of the float chamberso as to form a small annular chamber between said projections, a valve forclos'ing the upper end of the tubular air intake in said fuel chamber', a yielding' ine-ans for holding said valve closed, whereby. suction from the engine will open said valve and deflect theincoming air across the upper '85 carbureting chamber and extending` downend of the tubular chamber, ,and means for liftingthe liquid fuel into the path ofthe intake of air.4 V

'7. A carbureter including a float chamber for the liquid fuel having an upwardly extending tubular projection. forming an air intake,

a carbureting chamber secured to, L

and closing the upper end ofthe fuel cham ber, a tubular projection'integral with the lc'arbureting chamber andextending down- .wa-rdly therefrom and. looselyl surrounding the tubular projection of' the Afloat chamber so as to form al small annular chamberl between said I .l the upper end of the tubular Vintake in said holdingsaid valve closed,l whereby the tu' projections, a -valve for'closing ,110 fuel chamber, and a yielding means for bular opening will always' form a-1 direct communication between the fuel andl the carbureting chambers,

In `witness whereof, I have hereunto af.i

llixed my signature in the presen'ceof the witnesses herein named.

v WILLIAM M. GENTLE.

Witnesses:

G. H..BRINK, O. M. McLAUGHLiN.

Genies o1' this patent may be obcanedforI five cents each,l by addressing' the Commissioner-of Patients,- 

